Performance leather construction delivers superior durability and grip; Kevlar fabric and stitching reinforcement for extreme durability; Primaloft Cross Core insulation provides maximum warmth-to-weight ratio; Volcotek Heat Shield reflects body heat back to fingers; Molded knuckle protector for technical climbing protection; Secure leash system prevents loss during mountain activities; Warmth Level 3: Down to 0 deg F / -15 deg C